Abstract Herein, we describe a transition-metal-free protocol for the conversion of simple 2- allyl-3-(trifluoromethyl) phenols into substituted 5-fluoronaphthalen-1-ols. The key events of this reaction include the selective activation of two C [BOND] F bonds and formation of an intermediate hexatriene system, which undergoes a 6π electrocyclization, followed by rearomatization. This concept enables the rapid conversion (three steps) of various ...